Unsupervised Use of Psychedelics in LSD Psychotherapy, Hunter House, AlamedaCalifornia, 1980 J.Kennedy 1996 עמ' 126 H.Lahmeyer et al עמ' 194 הבהרה: המידע
Mexico, Allegory of California, The Making of a Fresco Showing the Building of a City, Sueño de una Tarde Dominical en la Alameda Central, Río Juchitán